I just replaced my factory tires with Wild Country 255/70/16's.. can anyone tell me if this will cause any problems.. ie: speedo, transmission, or anything else..

sorry I'm a little dense in these areas

Thanks

 

what was your original tire size?

Here is a breakdown of 255/70/16

255 - tire width in millimeters - 255 mm = app. 10 inch
70 - sidewall size - ratio compared to the width - 70% of
10 in = 7 in
16 - 16 in wheel

If you increased your tire width without compensating for it in with sidewall ratio, yes, your speedo will be affected.

you have a 30 in tire (16+7+7), if you change this then your rearend gearing will need to be changed to get it back to the stock setting. With a larger tire, more 'power' is needed to turn it.

hope this helps.

 

Original tire size was 235/70/16.
I'm not worried too much about the power. I'll gain it back with some mods.. I just don't want to tear up my rear end

 

235 mm = app 9.25 in
9.25 in *70% = 6.475
total tire height = 6.475*2+16=28.95

You're speedo will be off slightly, but not much. If you look around you'll probably find out how much it's off.
It won't hurt your rear end, you probably won't even notice it.

 

I just did the same change in tire size - 235 70 16 to 255 70 16. I went from Firestone Wilderness to Michelin LXT/MS. The speedometer is about 2.5 mph under at 65 mph, in other words when the spedo reads 65 you're actually doing 67.5. Not enough to bother me. BTW I really am impressed with the new Michelins.